未捕获的引用错误:myfunction 未定义 Parse.com

大家好，我正在尝试使用表单为我的网站创建使用 parse.com 和javascript的登录函数。但是，我不断收到未捕获的引用错误：当我测试它时，myfunction 没有定义错误。任何帮助将不胜感激。

谢谢大家，我添加了引号，这些引号删除了未捕获的引用错误：myfunction 未定义错误。但是我现在收到一个未捕获的引用错误：$ 未定义错误。我将如何删除此错误？

<!DOCTYPE html>
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
    <title>Sign Up</title>
    <meta charset="utf-8" />
    <meta name="viewport" content="width=device-width, intial-scale=1.8" />
    <script type="text/javascript" src="//www.parsecdn.com/js/parse-1.2.16.min.js"></script>
    <script type="text/javascript">
            function  myfunction() {
                var user = new Parse.User();
                user.set("FirstName", $(#signup-upFirstName).val());
                user.set("Surname", $(#signup-Surname).val());
                user.set("EmailAddress", $(#signup-Confirmemailaddress).val());
                user.set("Password", $(#signup-ConfirmPassword).val());
                user.signUp(null, {
                    success: function (user) {
                        // Hooray! Let them use the app now.
                    },
                    error: function (user, error) {
                        // Show the error message somewhere and let the user try again.
                        alert("Error: " + error.code + " " + error.message);
                    }
                });
            };
        </script>
    <style type="text/css">
        .auto-style1 {
            width: 156px;
        }
    </style>
</head>
<body>
    <div>
    <form>
       First Name: <input id="signup-FirstName" type="text" placeholder="Firstname"required="" />
       Surname: <input id="signup-Surname" type="text" placeholder="Surname" required=""/>
       Email Address:<input id="signup-EmailAddress" type="text" placeholder="EmailAddress" required=""/>
       Confirm Email Address: <input id="signup-Confirmemailaddress" type="text" placeholder="confirmemailaddress" required =""/>
       Password: <input id="signup-password" type="password" placeholder="password" required="" />
       Confirm Password: <input id="signup-ConfirmPassword" type="password" placeholder="confirmpassword" required="" />
       <input type="submit" onclick="myfunction();" value="Next" />
    </form>
    </div>

</body>
</html>

您的函数有多个语法错误，因此解析会停止，并且永远不会定义该函数。

 $(#signup-upFirstName).val());

"#signup-upFirstName"和其他jQuery选择器周围缺少引号。 jQuery选择器只是常规字符串，它们需要引号。

jQuery选择器中缺少引号。

function  myfunction() {
                var user = new Parse.User();
                user.set("FirstName", $('#signup-upFirstName').val());
                user.set("Surname", $('#signup-Surname').val());
                user.set("EmailAddress", $('#signup-Confirmemailaddress').val());
                user.set("Password", $('#signup-ConfirmPassword').val());
                user.signUp(null, {
                    success: function (user) {
                        // Hooray! Let them use the app now.
                    },
                    error: function (user, error) {
                        // Show the error message somewhere and let the user try again.
                        alert("Error: " + error.code + " " + error.message);
                    }
                });
            };

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